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Expired Canadian patentCanada

Single channel balloon uterine injector

CA 1313803 C · Owner: Valtchev, Konstantin Lazarov · Inventors: Valtchev, Konstantin Lazarov

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

9-, Abstract of the Disclosure, An apparatus for injection of dye or contrast medium into a uterine cavity. An elongated member having a first and a second end and an intermediate portion has a liquid impervious expandable tube disposed around it and is sealed on each end thereof to the exterior thereof. A first fluid passageway extends from one end of the elongated member to a barrier and another fluid passageway extends from the other end of the elongated member to the barrier. A first opening in the elongated member allows fluid communication between the first passageway and the inside of the balloon tube and a second opening in the elongated member provides fluid communication between …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted February 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 23, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 13, 1989
GrantedFebruary 23, 1993
Term endedFebruary 23, 2010
Patent numberCA 1313803 C
Classification (IPC)A61M31/00

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJuly 13, 1989Patent grantedFeb 23, 1993Term endedFeb 23, 2010

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.